This kind of stuff is a shame for every society, and as we go on and get more and more modern, I sense such supersitions and stupidity growing with our times. Even if we Colonise Mars, this kind of stuff will happen. Basic Human Nature I guess!

I think it is more with the barbaric culture for stupid cures for illnesses. They have no access to real medicine so peasants are forced to do really stupid things, like eat tiger paws or children's brains.